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Definition of CPAP

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Updated February 19, 2014

Written or reviewed by a board-certified physician. See About.com's Medical Review Board.

Definition: This primary treatment of sleep apnea works to keep the upper airway open by providing a constant flow of air delivered through a face mask worn while sleeping. The pressure is prescribed at a certain level and is produced by a small machine and delivered through plastic tubing to the mask.
Also Known As: Continuous Positive Airway Pressure
Examples:
It took time to get used to it, but CPAP has changed my life.

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